CN201741984U

CN201741984U - High-voltage coupler with internal inductance and external graduations for spark plug of gasoline engine

Info

Publication number: CN201741984U
Application number: CN201020233713XU
Authority: CN
Inventors: 苏克
Original assignee: Ningbo Daye Garden Equipment Co Ltd
Current assignee: Ningbo big leaf garden equipment Limited by Share Ltd
Priority date: 2010-06-19
Filing date: 2010-06-19
Publication date: 2011-02-09
Anticipated expiration: 2020-06-19

Abstract

A high-voltage coupler with an internal inductance and external graduations for a spark plug of a gasoline engine comprises a high-voltage coupler (1) with the external graduations, an insulator (3) with a plurality of umbrella edges, two threaded ends (4 and 4b) and the internal inductance of an inductance coil (15), wherein the high-voltage coupler (1) is provided with the graduations (1a), zigzag umbrella edges (1c), a fixing hole (1b) and internal threads, and the cross sections of the umbrella edges of the insulator (3) are zigzag. The utility model has the benefits that the coupling capacitive reactance between resistance and inductance can connect RCL equivalent circuits in series or parallel, so as to achieve the effect of radio interference resistance upon proper deployment; the spark plug has low possibility of dropping due to the insulator with the umbrella edges with the zigzag cross sections and a conductor of the high-voltage coupler with the zigzag umbrella edges and graduation grooves; and compared with the original semi-circular umbrella edges, the zigzag umbrella edges achieve more insulating creepage channels due to the zigzag shape.

Description

Gasoline motor spark plug reaches outer calibration high pressure coupling with interior induction reactance

Technical field

The present invention relates to the igniter in a kind of combustion apparatus, especially gasoline motor spark plug belongs to the technical field that anti-High-frequency Interference reaches the spark plug of preventing that grafting gets loose with interior induction reactance and outer calibration high pressure coupling.

Background technology

The igniter that is used for combustion apparatus, especially gasoline motor spark plug are widely used in the high voltage pulse electric current is introduced into the combustion chamber, and make the gaseous mixture sparking of inspiration cylinder and light, and then diffusion combustion and break out work done.The outside coupling of existing spark plug and having between the spark cap of rubber jar has the loose diffusing phenomenon of pine sometimes.Resistance is made though be provided with glass-sealing agent in the inside of existing spark plug, and impedance is only arranged; If add induction reactance and capacitive reactance, form suitable R CL loop, then have the effect of better inhibition radio interference.Multiple tracks umbrella rib on the insulator also can be improved to saw-tooth shaped cross section by semi-circular cross-section, better blocks rubber jar so that the creepage passage of more insulation reaches.The heat radiation of the metal shell of existing spark plug also can further improve.The electrode of existing spark plug is well imagined, easy knot charcoal is arranged, and easily ablates single-point arcing, the shortcoming of low temperature difficult point.Described problem is a hard nut to crack.In order to remedy a kind of igniter that is used for combustion apparatus, especially the shortcoming of operating state due to the existing mechanism of gasoline motor spark plug, the invention provides the method for a kind of gasoline motor spark plug with interior induction reactance and outer calibration high pressure hookup, and add shell heat radiation wing, so that improve the present situation of spark plug, make it more durable in use.

Summary of the invention

Technical solution adopted in the utility model is:

A kind of igniter that is used for combustion apparatus, especially gasoline motor spark plug reaches outer calibration high pressure coupling with interior induction reactance, be used for anti-High-frequency Interference and the anti-spark plug of pegging graft and getting loose, by having calibration (1a), zigzag umbrella rib (1c), the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread, pad (2), the insulator (3) of the multiple tracks umbrella rib in band saw profile of tooth cross section, the interior induction reactance of a threaded end (4) and the threaded other end (4b) and inductance coil (15), the shell (5) of band heat radiation wing, S shape retaining washer (6) contains the glass-sealing agent (7) of resistance, embeds steel core (8), discharge electrode bar (9), be subjected to electrode tie rod (10), discharge cartridge (11) is subjected to electrode tip (12), be subjected to electrode tip shell (13), formed by electrode tip shell back-up ring (14); The described calibration (1a) that has, zigzag umbrella rib (1c), the feature of the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread is: the described calibration (1a) that has is by equal calibration fluting on the electric conductor of described coupling (1); At least open a groove, or multiple-grooved; Preferably the number of multiple-grooved is by the degree value; For example, the number of degrees of certain spark plug are 6, and the number of then slotting is 6; The number of degrees of certain spark plug are 7, and the number of then slotting is 7.Though the number of degrees of the calorific value of general spark plug are divided into 5-13 by the difference of engine by the internal structure of spark plug, the big more just near more cold mould of numerical value, the engine that is fit to high rotating speed high compression ratio uses; The more little just near-thermal type more of numerical value, the engine that is fit to low compression ratio uses; But difficult appearance from spark plug is judged, or is easily obscured.The beneficial effect of slotting on the electric conductor of the coupling of spark plug has two, one, makes the selecting for use of the number of degrees of the calorific value of spark plug be difficult for obscuring, and the 2nd, make the coupling of the latch capitiform of original Dan Yuan make the latch effect better owing to fluting becomes claw type.The electric conductor of the fluting of described coupling (1) is to be inserted with in and the electrically conductive socket in cap that link to each other with the high pressure external connection of spark cap of rubber or plastic insulation shell.

The described calibration (1a) that has, zigzag umbrella rib (1c), the further feature of the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread is: described zigzag umbrella rib (1c), as Fig. 5, Fig. 6 and Fig. 9, shown in Figure 10, the zigzag in the outer part and the angle of axis are more slow, more easily insert in order to the socket of spark cap; And the angle of zigzag in the inner part and axis is bigger, is difficult for deviating from order to the socket of spark cap.As Fig. 5, Fig. 6 and Fig. 7, Fig. 8, shown in Figure 9, described groove depth is half of coupling length overall; Fixing hole (1b) is located at i.e. in the inner part the end of the end of not slotting, so that knock fixing.The internal thread of described coupling (1d), as Fig. 6, Figure 1 and Figure 2, link with a threaded end (4), and the insulator (3) of the multiple tracks umbrella rib in setting-up piece (2) and band saw profile of tooth cross section, and the interior induction reactance of a threaded end (4) and the threaded other end (4b) and inductance coil (15); A threaded end (4) links to each other with inductance coil (15); Inductance coil (15) links to each other with the threaded other end (4b); The glass-sealing agent (7) of the threaded other end (4b) by containing resistance, with embedding steel core (8), discharge electrode bar (9) links to each other.Described (4), part (15), part (7), part (8), part (9) insulated body (3) particularly ceramic body surrounds, just meeting coupling capacitive reactance mutually, described resistance and inductance have the effect of connection in series-parallel RCL equivalent electric circuit, and allotment suitably just has the effect of anti-radio interference.Embed steel core (8) and insert discharge electrode bar (9), in order to gaining in strength and heat conduction.Discharge electrode bar (9) or participate in discharge directly, or link to each other with discharge cartridge (11) that special special material is made.Be subjected to electrode tie rod (10) at least one or a plurality of, or participate in discharge directly, or link to each other with the electrode tip (12) that is subjected to that special special material is made, or link to each other with the electrode tip (12) that is subjected to that special special material is made, and install additional and be subjected to electrode tip shell back-up ring (14) through being subjected to electrode tip shell (13).The feature of the insulator (3) of the multiple tracks umbrella rib in described band saw profile of tooth cross section is, the zigzag of described zigzag umbrella rib and the angle of axis are more slow, more easily wraps in order to the rubber or the plastic insulation shell of spark cap; And the angle of zigzag in the inner part and axis is bigger, is difficult for deviating from order to the rubber or the plastic insulation shell of spark cap.The zigzag of described zigzag umbrella rib has than original semicircle umbrella rib and more manys the creepage passage of insulation and can better block rubber jar.The outside of an end of (being inner discharge side) in the inner part of the insulator (3) of the multiple tracks umbrella rib in described band saw profile of tooth cross section is provided with the shell (5) of being with the heat radiation wing, and S shape retaining washer (6).

The invention has the beneficial effects as follows: the anti-High-frequency Interference and anti-performance and the operating mode quality of getting loose of pegging graft that have improved this series products.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the generalized section that the present invention is used for spark plug.

Fig. 2 is the exploded perspective view that the present invention is used for spark plug.

Fig. 3 is the schematic perspective view of the interior induction reactance of a threaded end (4) and the threaded other end (4b) and inductance coil (15).

Fig. 4 is the schematic diagram of insulator (3) of the multiple tracks umbrella rib in band saw profile of tooth cross section.

Fig. 5 has calibration (1a), zigzag umbrella rib (1c), the schematic perspective view of the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread.

Fig. 6 has zigzag umbrella rib (1c), and the generalized section of the outer calibration high pressure coupling (1) of internal thread.

Fig. 7 is the schematic bottom view of coupling (1).

Fig. 8 is the end face schematic diagram of coupling (1).

Fig. 9 is that schematic diagram is looked on the left side of coupling (1).

Figure 10 is that schematic diagram is looked on the right side of coupling (1).

Among the figure, 1. be to have calibration (1a), zigzag umbrella rib (1c), the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread (1d); 2. be pad (2); 3. be the insulator (3) of the multiple tracks umbrella rib in band saw profile of tooth cross section; 4. be the interior induction reactance of a threaded end (4) and the threaded other end (4b) and inductance coil (15); 5. be the shell (5) of band heat radiation wing; 6. be S shape retaining washer (6); 7. be the glass-sealing agent (7) that contains resistance; 8. be to embed steel core (8); 9. be discharge electrode bar (9); 10. be to be subjected to electrode tie rod (10); 11. be discharge cartridge (11); 12. be to be subjected to electrode tip (12); 13. be to be subjected to electrode tip shell (13); 14. be to be subjected to electrode tip shell back-up ring (14); 15. be inductance coil (15).

Embodiment

Respectively assembling successively (and sintered ceramic and welding be subjected to electrode tie rod) has calibration (1a), zigzag umbrella rib (1c), the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread, pad (2), the insulator (3) of the multiple tracks umbrella rib in band saw profile of tooth cross section, the interior induction reactance of a threaded end (4) and the threaded other end (4b) and inductance coil (15), the shell (5) of band heat radiation wing, S shape retaining washer (6), the glass-sealing agent (7) that contains resistance, embed steel core (8), discharge electrode bar (9) is subjected to electrode tie rod (10), discharge cartridge (11), be subjected to electrode tip (12), be subjected to electrode tip shell (13), be subjected to electrode tip shell back-up ring (14).The described calibration (1a) that has, zigzag umbrella rib (1c) is opened a groove on the electric conductor of the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread at least, or multiple-grooved; Preferably the number of multiple-grooved is by the degree value; For example, the number of degrees of certain spark plug are 6, and the number of then slotting is 6; The number of degrees of certain spark plug are 7, and the number of then slotting is 7.The electric conductor of the fluting of described coupling (1) being screwed in a threaded end (4) and knock fixing hole (1b) makes spark plug.Spark plug is screwed in the screwed hole of engine, S shape retaining washer (6) is closely fastened.Be inserted with the spark cap of rubber or plastic insulation shell, the electric conductor of coupling (1) and electrically conductive socket cap in that link to each other with the high pressure external connection linked to each other.When to ignition advance angle, electric current is successively by coupling (1), the interior induction reactance of a threaded end (4) and the threaded other end (4b) and inductance coil (15) contains the glass-sealing agent (7) of resistance, embeds steel core (8), discharge electrode bar (9), be subjected to electrode tie rod (10), discharge cartridge (11) is subjected to electrode tip (12), be subjected to electrode tip shell (13), and at discharge cartridge (11) be subjected between electrode tip (12) to discharge.Described (4), part (15), part (7), part (8), part (9) insulated body (3) particularly ceramic body surrounds, just meeting coupling capacitive reactance mutually, described resistance and inductance have the effect of connection in series-parallel RCL equivalent electric circuit, and allotment suitably just has the effect of anti-radio interference.The shell (5) of band heat radiation wing is because of there being the area of dissipation of the heat radiation wing more much bigger than original cylinder, and it is self-evident that its thermal diffusivity is improved to some extent.The described calibration (1a) that has, zigzag umbrella rib (1c), the zigzag umbrella rib (1c) of the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread, the zigzag in the outer part and the angle of axis are more slow, more easily insert in order to the socket of spark cap; And the angle of zigzag in the inner part and axis is bigger, is difficult for deviating from order to the socket of spark cap.The groove depth of described fluting is the only about half of of coupling length overall; Fluting is different with its effect of not slotting, and is easy to behind the electric conductor fluting that little expansion forms multijaw and the socket of favourable spark cap is difficult for deviating from.

Claims

1. a gasoline motor spark plug reaches outer calibration high pressure hookup with interior induction reactance, by having calibration (1a), zigzag umbrella rib (1c), the outer calibration high pressure coupling (1) of fixing hole (1b) and internal thread, the insulator (3) of the multiple tracks umbrella rib in band saw profile of tooth cross section, and the interior induction reactance of a threaded end (4) and the threaded other end (4b) and inductance coil (15) is formed; It is characterized in that: the zigzag of the zigzag umbrella rib of the insulator (3) of the multiple tracks umbrella rib in described band saw profile of tooth cross section and the angle of axis are more slow; And the angle of zigzag in the inner part and axis is bigger.